3D

American

[three-dee] / ˈθriˈdi /

Or 3-D

adjective

of, relating to, or representing something in three dimensions; three-dimensional.

3D movies.

noun

a three-dimensional form or appearance.

My dreams are always in 3D.

Etymology

Origin of 3D

An Americanism dating back to 1950–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Some parents say they prefer this method to a 3D model, because they can get more detail from audio description of the image than from physical touch.

From BBC ● Sep. 12, 2026

So far, A.I. boosters have been quick to take credit when their models hit a new benchmark in email-writing or 3D modeling.

From Salon ● Sep. 12, 2026

Lauren Truslow, CEO of 3D Enviro, a Virginia company that does identification and abatement of hazardous materials, said the lack of a decision on TPS has been stressful and costly.

From Los Angeles Times ● Sep. 10, 2026

Everything has been designed and built in-house, using recycled materials to reduce costs and environmental impact, produced using 3D printers that thump away constantly in the background.

From Barron's ● Sep. 9, 2026

We put away the 3D glasses and get out.

From "What If It's Us" by Becky Albertalli and Adam Silvera

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023